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Finding the Fourth Proportional to 123,469.80, 185,204.70 and 73,606.20

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Solution

The fourth proportional to 123,469.80, 185,204.70 and 73,606.20 is: 110,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,469.80 : 185,204.70 = 73,606.20 : x
  2. Step 2: Convert to fraction form
    123,469.80/185,204.70 = 73,606.20/x
  3. Step 3: Cross multiply
    123,469.80x = 185,204.70 × 73,606.20
  4. Step 4: Simplify right side
    123,469.80x = 13,632,214,189.14
  5. Step 5: Solve for x
    x = 13,632,214,189.14/123,469.80
  6. Step 6: Final answer
    x = 110,409.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.